Looking for input on APATURE cables

I had a pair of the Apature Signature Series 500 wires a couple of (ok, nine) years ago that I picked up, essentailly, as overstock scrap from a fella in CT (he had an odd length left over from the end of a spool and practically gave it to me for asking). Used'm for years and I never could find anyone to tell me anything about them--or who would even claim to have heard of the stuff. (And it doesn't even look like they make it any more). I finally switched to some Kimber wires on a whim, not really knowing what to expect. Well, no looking back--single best upgrade I have made. (Full disclosure, it was an upgrade from scrap wire I picked up for $24-never even knew retail-to a pair of wires retailing over $1k. Price don't necessarily mean value, but there was one hell of a corollary in this case). Anyway, that's my only exposure to Apature. I too would love to hear anyone else's thoughts on them.